Circuit Schematic for Teledyne 8703 8-Bit CMOS Analog-to-Digital Converter

Eltronicschool. - When we are said about Analog to Digital Converter (ADC) so there are many types of monolithic analog to digital converters, such as the integrating A/D, integrating A/D with three-stage outputs, and the tracking A/D with latched outputs.

In this time, we will give you the circuit diagram of a Teledyne 8703 8-bit Monolithic CMOS analog to digital converter is given below. It is a 24-pin DIP package. like in Figure 1. below.

Circuit Schematic

Figure 1. Circuit Schematic for Teledyne 8703 8-Bit CMOS Analog-to-Digital Converter (Source: https://www.circuitstoday.com/)

Description

According Circuitstoday site describe that as in the case of monolithics, there are many hybrid A/D converters, such as the successive-approximation A/D with input buffer amplifier, the low-power CMOS A/D, the fast A/D with sample-and-hold, and the ultrafast A/D with input buffer amplifier. Datel Intersil’s hybrid ADC-815MC is a very high speed 8-bit successive-approximation A/D converter. It is capable of 8-bit resolution in only 600 nano seconds. It has a six analog-input voltage range with parallel or serial outputs and requires no calibration. Datel’s ADC-MC8B is an 8-bit monolithic multi-function A/D-D/A converter that operates on a single +5-V supply. It is a complete D/A converter that can be configured as an A/D converter by using an external comparator and a quad two-input Schmitt trigger NAND gate.

Similar to DIGITAL TO ANALOG CONVERTER, specifications such as resolution or nonlinearity are also used for A/D converters. Another important parameter for A/D is conversion time. Conversion time is the time required to convert an analog input into valid digital outputs. Typical applications of A/D converters include microprocessor interfacing, data printing and recording, digital voltmeters, and control of LED or LCD displays.

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Circuit Schematic SCR DC to DC Converter Circuit using S6008 SCR

Eltronicschool. - This is one of circuit schematic DC to DC converter based on Silicone Controlled Rectifier (SCR). In here SCR used to convert input voltage with other value in output.

In this time, we will give you Circuit Schematic SCR DC to DC Converter Circuit using S6008 SCR like in Figure 1. below.

Circuit Schematic

Figure 1. Circuit Schematic SCR DC to DC Converter Circuit using S6008 SCR
(Source: ElectronicKitSchool)

Component Part

1. SCR S6008
2. Resistors
3. Capacitors
4. Inductor
5. Diode
6. Transformer
7. Zener diode

Description

Circuit schematic like in Figure 1 above is Circuit Schematic SCR DC to DC Converter Circuit using S6008 SCR. According ElectronicKitSchool blog describe that 12V to 1 - 8 Volt, 100mA SCR DC to DC Converter Circuit using S6008 SCR. The main component used in this circuit is SCR served as the DC to DC Converter. 

When SCR1 fires, C2 charges via L1 and rings up to approximately twice the input voltage (24V). At that point, the series resonant circuit attempts to ring back, but is limited by the blocking effect of SCR1 –at this point, SCR1 commutates. Upon the subsequent edge, SCR2 is triggered and discharges C2 into C3 via L1. Since C3 is much larger than C2, the charge contribution of C2 is relatively minor, causing the output voltage to increase only a fraction of a volt. When C2 is discharged to below zero, D3 clamps the voltage to -0.5V and the current through L1 continues to flow until it decays to zero. At this point, SCR2 becomes reverse biased and commutates. Then the process begins again –and runs at several kHZ. This frequency may be controlled either manually (this discussion) or automatically regulated (future discussions).

For more information about Circuit Schematic SCR DC to DC Converter Circuit using S6008 SCR, please read more from original source using link here.

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Circuit Schematic 3.3 - 5 VDC to 12 - 13.8 VDC Boost Converter using KA34063 IC

Eltronicschool. - One the DC to DC converter IC that will help you to create DC converter is KA34063 IC. The KA34063A is a monolithic reoulator subsvstem intended for use as DC to DC converter. This device contains a temperature compensated bandgap reference, a duty-cycle control oscillator, driver and high current output switch.

In this time, based on KA34063 DC to DC converter IC, we will give you one of electronic circuit schematic of boost converter that can produce output voltage 12 - 13.8 VDC from the input 3.3 - 5 VDC like in Figure 1. below.

Circuit Schematic

Figure 1. Circuit Schematic 3.3 - 5 VDC to 12 - 13.8 VDC Boost Converter using KA34063 IC

Component Part

1. KA34063 IC
2. Coil Inductor
3. Resistors
4. LED
5. Diode
6. Capacitors
7. Variable Resistor

Description

We adopt this circuit of 3.3 - 5 VDC to 12 - 13.8 VDC Boost Converter using KA34063 IC from Eleccircuit that publish this circuit with little different part of component value. Eleccircuit describe that this DC boost converter circuit that can use 3.3V to 5V power supply source into DC 12V-13.8V output max current 100mA. It is switching circuit better than old circuit. With this circuit, you can increase low voltage battery to high voltage load as you need with high efficiency.

Special feature

1. Used for a power supply, 3.3-5 volts 750 mA up
2. Can apply voltage 12-13.8 volts depends on the power supply input
3. f use the power supply of 5 volts DC current 300mA, can apply the output; voltage is 12 volts DC at 100 mA maximum
4. If use the power supply of 3.3 volts DC current 660mA, can apply the output; voltage to 12 volts DC at current maximum to 50 mA
5. Maximum current output : 100 mA
6. Normal Switching frequency about : 43 KHz
7. Can adjust the output voltage
8. There is power on LED display

How it works


The circuit will show in Figure 1. above, the operation start with when we apply the power supply to the circuit. The IC1 will acts as the step up voltage converter. The voltage will increased to pin 1 of IC1-KA34063 through diode D1 to OUT point. We can adjust the output voltage by adjusting at VR1.

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Circuit Schematic Low Power Inverter 12VDC to 230VAC using CD4047 and Power MOSFET IRFZ44

Eltronicschool. - This is one of the simple inverter circuit schematic for you who want to produce 230VAC from 12VDC using low power Monostable/Astable Multivibrator IC CD4047 and power MOSFET IRFZ44 like in Figure 1. below. (You also can read: Circuit Schematic 12V LDO Solar Charge Controller using MOSFET)

Circuit schematic

Figure 1. Circuit Schematic Low Power Inverter 12VDC to 230VAC using CD4047 and Power MOSFET IRFZ44 (Source: circuitsgallery)

Component Parts

1. CD4047 IC
2. Transformer
3. Resistors
4. Capacitors
5. MOSFET IRFZ44
6. All components see in Figure 1 above

Description

Circuit schematic like in Figure 1. above is Circuit Schematic Low Power Inverter 12VDC to 230VAC using CD4047 and Power MOSFET IRFZ44. According Circuitgallery site describe that this simple low power dc to ac inverter (dc to ac converter) circuit converts 12V DC to 230V or 110V AC. By doing simple modification you can also convert 6V DC to 230V AC or 110V AC. It can be used as inverters for home needs to enable light loads (electric bulb, CFL, etc) at the time of electricity failure.

You can construct this circuit of simple inverter at a cheap rate with locally available components. Use a 12V rechargeable battery and battery charging circuit for this dc to ac inverter. We have already posted the circuit for battery charger. Read more here.

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Circuit Schematic DC Boost Converter 3.3-5V to 12V-13.8V using -KA34063 IC

Eltronicschool. - This is one of the circuit schematic DC converter that will produce output voltage 12V-13.8 Volt using input 3.3-5 Volt. The Circuit Schematic DC Boost Converter 3.3-5V to 12V-13.8V using -KA34063 IC like in Figure 1 below. (You also can read: Circuit Schematic 12V LDO Solar Charge Controller using MOSFET)

Circuit schematic

Figure 1. Circuit Schematic DC Boost Converter 3.3-5V to 12V-13.8V using -KA34063 IC
(Source: Eleccircuit)

Component Parts

1. 12V Solar Panel
2. TLC555 IC
3. Resistors
4. Capacitors
5. All components see in Figure 1 above

Description

Circuit schematic like in Figure 1 above is Circuit Schematic DC Boost Converter 3.3-5V to 12V-13.8V using -KA34063 IC. According Eleccircuit site describe that this is DC boost converter circuit that can use 3.3V to 5V power supply source into DC 12V-13.8V output max current 100mA. It is switching circuit better than old circuit.

You can increase low voltage battery to high voltage load as you need with high efficiency

My son bought LED light Bulb a few days ago. As Figure 1. It is cheap and supper bright. It is used for 12V power supply only. But he does not know its power consumption. Thus, he want to measure the it’s current. Read more here.

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Circuit schematic 16-bit adjustable reference uses 8-bit digital potentiometers

Eltronicschool. - There are many circuit schematic designed using converter principles for many application. One application is to adjust reference in digital potentiometer. In here we will give you specific circuit schematic using converter principle for adjustable reference uses 8-bit digital potentiometers like in Figure 1 below. (You also can read: Circuit Schematic Analog to Digital Converter using ADC0808 IC)

Circuit schematic

Figure 1. two digital potentiometers (m.eet.com)

Component Parts

1. Potentiomenter
2. Op-Amp like LM741

Description

Circuit schematic like in Figure 1 above is Two digital potentiometer. According Edn site describe that It may be easy to find a precision voltage reference for your application; however, a programmable precision reference is another matter. The circuit in Figure 1 above yields a precision reference with an LSB of 62.5 µV. The circuit is a 16-bit DAC using three 8-bit digital potentiometers and three CMOS op amps. Each digital potentiometer operates as an 8-bit multiplying DAC. On the left side of Figure 1 above, two digital potentiometers, IC3A and IC3B, span across VREF to ground, and the wiper outputs are connected to the noninverting inputs of two amplifiers, IC4A and IC4B. In this configuration, the inputs to the amplifiers have high impedance levels, thus isolating the digital potentiometers from the rest of the circuit. The microcontroller, IC1, programs digital potentiometers IC3A and IC3B through its SPI port. If VREF is equal to 4.096V, the LSB at the outputs of IC4A and IC4B is 16 mV.

To make this circuit perform as a 16-bit DAC, a third digital potentiometer, IC2A, spans across the outputs of the two amplifiers, IC4A and IC4B. The programmed setting of IC3A and IC3B sets the voltage across this third digital potentiometer. If VREF is 4.096V, you can program IC3A and IC3B such that the output difference of op amps IC4A and IC4B is 16 mV. You can achieve high accuracy with this circuit by using a dual digital potentiometer for IC3A and IC3B. With the dual structure, the resistances of these two devices match typically within 0.2%. Given the size of the voltage across the third digital potentiometer, the LSB of the complete circuit from left to right is 62.5 µV (VREF/216). Table 1 shows the critical device specifications to obtain optimum performance with this circuit..

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Circuit Schematic Analog to Digital Converter using ADC0808 IC

Eltronicschool. - There are many circuit schematic designed to convert analog signal to digital signal. One application is to do this function is circuit schematic like in Figure 1 below. This is Circuit Schematic Analog to Digital Converter using ADC0808 IC with special IC is ADC0808. (You also can read: Circuit Schematic 12V LDO Solar Charge Controller using MOSFET)

Circuit schematic

Figure 1. Circuit Schematic Analog to Digital Converter using ADC0808 IC
(Electronics-Lab)

Component Parts

1. ADC0808
2. C2 = 0.1uF
3. C1 = 0.1uF
4. RN1 = 10K
5. R1 = 1K
6. C3 = 1nF
7. IC2 = 7414

Description

Circuit schematic like in Figure 1 above is Circuit Schematic Analog to Digital Converter using ADC0808 IC. According Electronics-Lab site describe that his simple A2D (Analog to Digital) Converter Board can log upto 8 channel of analog signal with 8 bit resolution.  This board uses the  ADC0808 chip from National Semiconductor.

When you want to take this circuit schematic of Analog to Digital Converter using ADC0808 IC project you should prepare some tools specification like:

• Two standard box type header connector for easy connection of the board to various development boards or project
• Separate box header for Data and Control signal for the ADC
• Screw terminal connector for easy connection of Analog signal input or sensor connection to the board
• +5 VDC and Gnd connection available for sourcing supply for your sensor or add-on interface or signal conditioner board
• Onboard oscillator source for the analog to digital converter
• Four mounting holes 3.2 mm each
• PCB dimensions 54 mm x 63 mm

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Convert Analog Audio to Digital Audio using Flash ADC207

Eltronicschool. - We think that you very familiar with analog to digital converter system and called with ADC. ADC can convert analog signal to digital signal to process with digital processing like in computer and other devices. 

In this article we will show you one ADC that special designed for audio signal processing using flash ADC207. This article will describe global information about this ADC as like the features of ADC207.

Architecture of ADC207

ADC207 Architecture

Description

ADC207 is one type of ADC is designed specifically for processing audio signals into analog audio signals in digital format. ADC207 has a high conversion speed and use a high sampling frequency so that the quality of the data conversion result to be better. ADC207 is the first ADC that uses Flash Converting An advandced High Speed ​​VLSI 1.2 micron CMOS process. The process that is able to do ADC207 as mentioned earlier is very severe and make it unique ADC207. The process speed ADC has good linearity and has a stable work temperature. ADC207 has a low power consumption of 250 mW. 

ADC is working with +5 Vdc voltage source and at a frequency of 20 MHz. ADC207 have a small sampling time is 12 nS, thus making more ideal sampling results. ADC207 has 128 comparators with features auto balanced on each conversion that serves to offset the effects of temperature and existing dinamaik. Resistor ladder at this ADC207 midpoint connected to an external voltage source and function in the conversion of 7-bit linearity. ADC207 has 3 levels of output that is easy to connect with external components.

Features of ADC207  

• 7 bit flash A / D Converter
• Sampling frequency 20 MHz
• Low power consumption (250mW)
• VCC 5 Vdc
• 1.2 micron CMOS technology
• 7 bits to gate 3 at the output level and overflow bits

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Simple Circuit Schematic Analog to Digital Converter using ADC 0808 IC

Eltronicschool. - When we work with computer, computer will only process the discrete signal or digital signal. So, when we have continuous signal or analog signal it is need to convert in to digital signal to process by computer.

We need analog to digital converter circuit when we want work from analog signal to digital signal like in figure 1 below. This analog to digital converter circuit using ADC 0808 IC with 8 bits output.The ADC 0808 is an 8-bit A-to-D converter, having data lines D0-D7. It works on the principle of successive approximation. It has a total of eight analogue input channels, out of which any one can be selected using address lines A, B and C. Here, in this case, input channel IN0 is selected by grounding A, B and C address lines.

Circuit Schematic

Figure 1. Schematic Analog to Digital Converter using ADC 0808 IC
(Source: electronic-circuits-diagrams)

Description

Circuit schematic like in figure 1 above is Simple Circuit Schematic Analog to Digital Converter using ADC 0808 IC. The ADC 0808 IC requires clock signal of typically 550 kHz, which can be easily derived from an astable multivibrator constructed using 7404 inverter gates. In order to visualise the digital output, the row of eight LEDs (LED1 through LED8) have been used, wherein each LED is connected to respective data lines D0 through D7. Since ADC works in the continuous mode, it displays digital output as soon as analogue input is applied. The decimal equivalent digital output value D for a given analogue input voltage Vin can be calculated from the relationship. Read more the description using link source below.

Link Source :

• http://www.electronic-circuits-diagrams.com/computer-pc-hardware-circuits-2/simple-analog-to-digital-converter-circuit/

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